Search Results - Washington State Department of Ecology

Remedial Investigation Report template

This document is a suggested template to use when preparing a remedial investigation report for an environmental cleanup. It is designed to meet the requirements of the Model Toxics Control Act described in 173-340-350(7) and 173-340-840 of the Washington State Administrative Code. This suggested template is not required.

https://ecology.wa.gov/remedialinvestigationtemplate

Borrador de la Declaración del Impacto Ambiental para el proyecto propuesto de reducción de daños por inundaciones en la cuenca del Río Chehalis

Esta hoja de enfoque describe el proceso de revisión ambiental y el período de comentarios públicos con una visión general del proyecto propuesto por el solicitante.

https://ecology.wa.gov/chehalisdeis-focussheet-espanol

Error Analysis for Water Quality Policy 1-11: Pertaining to the Water Quality Assessment December 2016

Water Quality Policy 1-11 is the policy that guides listing decisions for Washington’s Water Quality Assessment to meet Clean Water Act requirements for sections 303(d) and 305(b). During updates to Policy 1-11 in 2012, several comments were received about the risk of listing errors for waters that were placed on the 303(d) list based on limited data.

https://ecology.wa.gov/erroranalysispolicy1-11

PreferredPerformanceStdsFinal2007.pdf

This document explains the environmentally sound management and performance standards for direct processors in the E-Cycle Washington program.

https://ecology.wa.gov/preferredperformancestdsfinal2007-pdf

Marine Fisheries Service Biological Opinion for Puget Sound, National Flood Insurance Program

The enclosed document contains a biological opinion prepared by the National Marine Fisheries Service pursuant to section 7(a)(2) of the Endangered Species Act of 1973, as amended (16 U.S.C. 1531 et seq.), on the effects of certain on-going elements of the National Flood Insurance Program throughout Puget Sound in Washington State.

https://ecology.wa.gov/marine-fisheries-service-biological-opinion-for-pu

Ch173350_3rdPrelimDraft121516-PartTwo.pdf

Part Two: 210 Recycling and material recovery facilities, -220 Composting facilities, -225 Other organic material handling activities, -230 Land application, -240 Energy recovery and incineration facilities, -250 Anaerobic digesters, and -300 On-site storage, collection and transportation standards.

https://ecology.wa.gov/ch173350_3rdprelimdraft121516-parttwo-pdf

Waste Treatment and Immobilization Plant Analytical Laboratory Public Comment Period Focus Sheet

This Class 3 permit modification (8C.2017.4D) focuses on the operations of the Analytical Laboratory (Lab) and provides the operating details for the Analytical Lab under the Direct-Feed Low-Activity Waste configuration.

https://ecology.wa.gov/focus-sheet-3a9ad83c09b26cfd707a988692e9ab96

Wastewater Operator Certification WAC

This is the Washington Adminstration Code that governs how we certify operators. It also shows how plants are classified at the end of the document.

https://ecology.wa.gov/ww-wac

Adopted Rule - Text with Tracked Changes to Proposed Rule (WAC 173-360; WAC 173-360A) 07/17/18

There are some differences between the proposed Underground Storage Tank rule filed on January 24, 2018, and the adopted rule filed on July 18, 2018. This document identifies all of the changes Ecology made to the text of the proposed rule, including all deletions and additions.

https://ecology.wa.gov/adopted-rule-text-with-tracked-changes-to-proposed

Draft GAP Rule Conceptual Framework for Informal Review

This document provides a narrative description of the concepts being used to draft the GAP rule. It includes changes to the initial ideas presented by the Washington State Department of Ecology (Ecology) in five public webinars from June to November 2020, based on public input and feedback. This document provides information as of the time of release for informal comment.

https://ecology.wa.gov/draft-gap-rule-conceptual-framework-for-informal-r

Ecology Water Quality Combined funding program - Fiscal Year 2020 Applicant Workshop - Facility Session

The Wasterwater Facility session for the Water Quality Combined funding cycle - Fiscal Year 2020 Applicant Workshop

https://ecology.wa.gov/wqc-fy2019-applicant-workshop-facility-session

Water Quality Combined funding program State Fiscal Year 2023 Applicant Workshop Notice

This is the announcement and detailed information for the Water Quality Combined funding program's State Fiscal Year 2023 Applicant Workshop for anyone wanting to apply for loan or grant funding from the Water Quality Combined funding program in this next application cycle.

https://ecology.wa.gov/wqc-fy2019-applicant-workshop-notice

Fact Sheet for the Sand and Gravel General Permit

Fact sheet for permitted discharges from Process Water, Stormwater, and Mine Dewatering Water Discharges Associated with Sand and Gravel Operations, Rock Quarries, and Similar Mining Facilities, Including Stockpiles of Mined Materials, Concrete Batch Operations and Hot Mix Asphalt Operations

https://ecology.wa.gov/2015factsheet

Annual Report 2023

The Washington State Mercury-Containing Lights Product Stewardship Program began on Jan. 1, 2015, for the collection and recycling of mercury-containing lights sold at retail. Pursuant to WAC 173-910-430, each stewardship organization must submit an annual report to the department describing the results of implementing the stewardship organization's plan for the prior calendar year.

https://ecology.wa.gov/annual-report-2023

Clean Earth Washougal public meeting

Public Event: Nov. 1, 2025, 3 p.m., in Camas, WA
We invite you to come and ask the Ecology site manager questions about the Clean Earth Washougal cleanup.

https://ecology.wa.gov/events/hwtr/clean-earth/washougal-public-meeting

Clean Earth Washougal public comment period

Comment Period: Oct. 6, 2025, 12 a.m. - Dec. 6, 2025, 11:59 p.m.
We invite you to review and comment on cleanup documents for contamination cleanup at Clean Earth Washougal located at 625 S. 32nd Street in Washougal, Washington.

https://ecology.wa.gov/events/hwtr/clean-earth/washougal

Clean Vehicles Program Rulemaking Public Hearing #1

Public Event: June 24, 2025, 9 a.m., in Online webinar

https://ecology.wa.gov/events/cpr/ao24-07-chapter-173-423-wac/clean-vehicles-program-rulemaking-public-hearing-6-25-2025

Clean Vehicles Program Rulemaking Public Hearing #2

Public Event: June 25, 2025, 5 p.m., in Online webinar

https://ecology.wa.gov/events/cpr/ao24-07-chapter-173-423-wac/clean-vehicles-program-rulemaking-public-hearing-6-25-2025-a55dafa1811c3c91179a198be286ae5e

Recycling Reform Act

Public Event: Oct. 7, 2025, 10 a.m., in Online webinar

https://ecology.wa.gov/events/swm/recycling-reform-act/recycling-reform-act-kickoff-webinar-10-7-25

McCleary Wastewater Treatment Plant Draft Permit

Comment Period: Oct. 14, 2025, 12:05 a.m. - Nov. 13, 2025, 11:59 p.m.
We invite you to comment on the draft permit No. WA0024040

https://ecology.wa.gov/events/wq/npdes-discharge-permit/city-of-mccleary

December Local Government Sounding Board

Public Event: Dec. 15, 2025, 1 p.m., in Online webinar

https://ecology.wa.gov/events/rulemaking/173-26-and-173-27-wac-shoreline-management-act/declgsb-805383d98247e5e39a413ead50dc4fa6

Lower Duwamish Waterway cleanup community office hours

Public Event: Nov. 11, 2025, 6 p.m., in Seattle, WA
Do you have a question about the cleanup of the Lower Duwamish Waterway?

https://ecology.wa.gov/events/tcp/ldw-february-office-hours/november-south-park

Lower Duwamish Waterway cleanup community office hours

Public Event: Nov. 17, 2025, 7 p.m., in Seattle, WA
Do you have a question about the cleanup of the Lower Duwamish Waterway?

https://ecology.wa.gov/events/tcp/ldw-february-office-hours/november-georgetown

Draft guidance chapters

Comment Period: May 1, 2025, 12 a.m. - Nov. 21, 2025, 11:59 p.m.
We are accepting comments on the remaining draft guidance chapters.

https://ecology.wa.gov/events/wq/voluntary-clean-water-ag-guidance/voluntary-clean-water-guidance

MTCA Cleanup Orders and Public Participation Plan

Comment Period: Aug. 5, 2025, 12:01 a.m. - Sept. 16, 2025, 11:59 p.m.
MTCA Cleanup Orders and Public Participation Plan

https://ecology.wa.gov/events/swm/cosmo-specialty-fibers/mtca-cleanup-orders-and-public-participation-plan

Chapters 173-423 and 173-400 WAC – Clean Vehicles Program

This is the rulemaking page for Chapter 173-423 WAC and Chapter 173-400 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac173-423-400jan18

Reserve Silica Reclamation

Comment Period: May 1, 2025, 12 a.m. - May 30, 2025, 11:59 p.m.
Reserve Silica Reclamation Remedial Investigation

https://ecology.wa.gov/events/swm/reserve-silica-reclamation-remedial-investigation/reserve-silica-reclamation-remedial-investigation

Modernizing Washington's litter tax

Comment Period: July 8, 2025, 12 a.m. - Aug. 8, 2025, 11:59 p.m.
Litter tax agency request legislation

https://ecology.wa.gov/events/swm/litter-tax/litter-tax-agency-request-legislation

Eastside Fire & Rescue headquarters property cleanup site

Public Event: Nov. 5, 2025, 5 p.m., in Issaquah, WA
Drop in during a two-hour open house to learn more about this cleanup site and speak with staff from the City of Issaquah, Eastside Fire & Rescue, and Ecology. While no formal presentation is planned, handouts and visuals will be available.

https://ecology.wa.gov/events/tcp/efr-hq-ives/efr-hq-ives-open-house

Eastside Fire & Rescue headquarters property cleanup site

Comment Period: Oct. 20, 2025, 12 a.m. - Dec. 22, 2025, 11:59 p.m.
You are invited to review and comment on an Interim Action Work Plan and State Environmental Policy Act (SEPA) Determination of Nonsignificance.

https://ecology.wa.gov/events/tcp/efr-hq-ives/efr-hq-ives

Reserve Silica Reclamation

Public Event: May 7, 2025, 6 p.m., in Online webinar

https://ecology.wa.gov/events/swm/reserve-silica-reclamation-remedial-investigation/reserve-silica-reclamation-remedial-investigation-e7dbeb8ddeac653aa26cded6e007f707

Webinar #1: Cut from the Same Cloth

Public Event: May 6, 2025, 10 a.m., in Online webinar

https://ecology.wa.gov/events/swm/textile-webinar-series/textile-webinar-may-6-2025

Lower Duwamish Waterway cleanup community office hours

Public Event: Oct. 23, 2025, 12 p.m., in Seattle, WA
The Lower Duwamish Waterway Group, the EPA, and Washington State Department of Ecology are teaming up to host a monthly Lower Duwamish Community Office Hour. Stop by any time to learn more, chat with project staff, and ask questions.

https://ecology.wa.gov/events/tcp/ldw-february-office-hours/october-office-hours

Scoping comment period for sustainable aviation fuel

Comment Period: Oct. 6, 2025, 12 p.m. - Nov. 5, 2025, 11:59 p.m.
We are seeking public input to help us determine what to study in the sustainable aviation fuel programmatic environmental impact statement.

https://ecology.wa.gov/events/sea/clean-energy-coordination/sustainable-aviation-fuel-scoping-comment-period

Chapter 173-423 WAC – Clean Vehicles Program

This is the rulemaking page for Chapter 173-423 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-423

Chapter 173-442 WAC – Clean Air Rule

This is the rulemaking page to repeal Chapter 173-442 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-442

Chapter 173-340 WAC

This is the rulemaking page for Chapter 173-340 WAC, Model Toxics Control Act Cleanup Regulations.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-340

Chapter 173-423 WAC<br>and WAC 173-400-025 – Low Emission Vehicles

This is the rulemaking page for Chapter 173-423 WAC and Chapter 173-400 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-423-400

Informational Webinar

Public Event: Nov. 5, 2025, 10 a.m., in Online Webinar
We are hosting a webinar where we will discuss our process and provide an overview of chapters available to comment on.

https://ecology.wa.gov/events/wq/voluntary-clean-water-ag-guidance/informational-webinar

Chapters 173-422 and 173-422A WAC – Motor Vehicle Emission Inspection

This is the rulemaking page to repeal Chapters 173-422 and 173-422A WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-422-422a

Chapter 173-331 WAC

This is the rulemaking page for Chapter 173-331 WAC, Vehicle Battery Recycling.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-331-dec15

WA DNR Webster Nursery, Tumwater

Comment Period: Oct. 3, 2025, 8 a.m. - Nov. 3, 2025, 11:59 p.m.
Based on recent sampling data, Ecology is ready to remove this site from the Contaminated Sites List.

https://ecology.wa.gov/events/tcp/delisting-hsl/comment-period

Teck Washington, Inc. Draft Permit

Comment Period: Oct. 15, 2025, 12 a.m. - Nov. 14, 2025, 11:59 p.m.
We invite your comments on draft State Waste Discharge permit ST0501348 being issued to Teck Washington, Inc. located in Pend Oreille County.

https://ecology.wa.gov/events/wq/waste-discharge-permits-2e5ab73db877bfab36ddd36a6a436930/teck-washington-inc-public-notice

Wapato Valley Mitigation and Conservation Bank NWS-2015-413 — Public comment period

Comment Period: Oct. 16, 2025, 12 a.m. - Nov. 15, 2025, 11:59 p.m.
Plas Newydd LLC proposes to establish and operate a wetland bank in Clark County.

https://ecology.wa.gov/events/sea/wetland-banks/wapato-mbi-pn

Geothermal Collaborative Process community workshop

Public Event: Nov. 12, 2025, 9 a.m., in Online webinar

https://ecology.wa.gov/events/sea/clean-energy-coordination/geothermal-collaborative-process-community-workshop-6447b5aaaabdda3e5c7b0a657473bed1

Geothermal Collaborative Process community workshop

Public Event: Nov. 6, 2025, 1:30 p.m., in Online webinar

https://ecology.wa.gov/events/sea/clean-energy-coordination/geothermal-collaborative-process-community-workshop

Cleanup Plan Prioritization comment period

Comment Period: Oct. 23, 2025, 12 a.m. - Nov. 28, 2025, 11:59 p.m.
We want your feedback on our current and proposed water cleanup work.

https://ecology.wa.gov/events/wq/annual-public-tmdl-arp-prioritization-webinar/tmdl-arp-plan-prioritization-public-webinar-9830fd7ef7b943c90b81920fff576ac9

Chapter 173-167 WAC Emergency Drought Funding (2023)

This is the rulemaking page for Chapter 173-167 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-167-2023